JPH0239042A - Silver halide photographic sensitive material - Google Patents

Abstract

PURPOSE:To make it possible to maintain the sufficiently carrying property of the title material by mounting a backing layer contg. a specified dyestuff on the opposite side of a photosensitive layer against a supporting body. CONSTITUTION:The backing layer contains a mat agent contg. >=30vol.% of a particle having a particle size of >=5mum, and the dyestuff in an amount capable of giving an optical density of at least 0.6 at the region of a wavelength of 700-840nm, and the backing layer is mounted on the opposite side of the photosensitive layer against the supporting body. The mat agent is composed of the discontinuous solid particle of an inorg. or an org. material which is capable of dispersing in a hydrophilic org. colloidal binder, and may be dissolved or not by subjecting the photosensitive material to a development processing. Thus, the title photographic sensitive material which is improved the carrying property and capable of sensitizing by infrared rays, is obtd.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a silver halide photographic light-sensitive material that is spectrally sensitized in the infrared region, and particularly relates to an infrared-sensitized silver halide light-sensitive material that is spectrally sensitized in the infrared region. It relates to photographic materials.

(Prior Art) One of the exposure methods for photographic light-sensitive materials is to scan an original image and expose the silver halide photographic material based on the image signal, thereby creating a negative or positive image corresponding to the image on the original image. An image forming method using a so-called scanner is known.

There are a variety of recording devices that use a scanner-only image forming method, and glow lamps, xenon lamps, mercury lamps, tungsten lamps, light-emitting diodes, etc. have traditionally been used as recording light sources for these scanner-only recording devices. . However, all of these light sources have practical drawbacks of low output and short lifespan. To compensate for these drawbacks, there are scanners that use a coherent laser light source, such as a Ne-He laser, an argon laser, or a He-Cd laser, as a scanner-only light source. Although these devices can provide high output, they are large and expensive, require a modulator, and use visible light, which limits the safelight of photosensitive materials and makes them difficult to handle. There are drawbacks such as.

On the other hand, semiconductor lasers are small, inexpensive, easy to modulate, have a longer lifespan than the lasers mentioned above, and emit light in the infrared region, so if a photosensitive material sensitive to the infrared region is used, a bright safelight can be produced. Since it can be used, it has a fl1 point of improving handling workability.

Photosensitive materials compatible with semiconductor lasers that have such advantages have recently become commercially available.

On the other hand, various types of equipment have been developed that are equipped with automatic transport mechanisms, such as equipment that automatically transports photographic materials for exposure and development processing. It's coming.

When trying to feed photosensitive materials using such an automatic conveyance system, it may get stuck on the way and not be fed, or especially in the case of large sheet films, when trying to feed them one by one from the sheet tray or stack zone, two sheets may be stuck together. Sometimes I end up sending it to someone else.

To ensure running properties, a capping agent is usually added.

In this case, fine particles of about 1 to 3 μm are often used as the mantle agent. However, when such a matting agent is applied to automatic conveyance equipment equipped with various conveyance mechanisms as described above, it is no longer possible to ensure sufficient conveyance performance.

On the other hand, if a large-sized mantle agent is added to the emulsion layer or its protective layer to improve transportability, the mantle agent may cause light scattering, resulting in a decrease in image quality, or the matting agent may be contaminated with halogens. It may sink into the silver oxide emulsion layer and cause irradiation, or in the case of a spherical cape agent, it may produce a lens effect and cause spot sensitization. Furthermore, as described in JP-A-61-188945, there is a known method of improving feeding performance by adding a large capping agent to the backing layer of a paper support; If a matting agent of the same size is included in the buffing layer, even if exposure is performed from the emulsion surface, the light scattering effect from the backing M will be large and the image quality will deteriorate.

Especially when exposed to infrared light such as a semiconductor laser,
Image quality deteriorates significantly due to cloak agent.

(Object of the present invention) An object of the present invention is to provide an infrared-sensitized silver halide photographic material with improved transportability.

Another object of the present invention is to provide an infrared-sensitized silver halide photographic material that has improved transportability without deteriorating image quality.

(Structure of the Invention) The above-mentioned object of the present invention is to provide a silver halide photographic material comprising at least one photosensitive layer comprising a silver halide photographic emulsion sensitized with an infrared sensitizing dye on a transparent support. In the material, on the opposite side of the photosensitive layer as viewed from the support, grain size 5.
A matting agent containing 30v010% or more of particles larger than μ and 74
This was achieved by a silver halide photographic material characterized by providing a backing layer containing a dye in a small amount (both 0.6) in the region of 0 nm to 840 nm.

Matting agents are well known in the photographic art and can be defined as discrete solid particles of inorganic or organic material dispersible in a hydrophilic organic colloid binder.

The mantle agent used in the backing layer in the present invention is
It may be a material that dissolves during the development process or a material that does not dissolve.

Examples of inorganic capping agents include oxides (e.g. silicon dioxide, titanium oxide, magnesium oxide, aluminum oxide, etc.), alkaline earth metal salts (e.g. sulfates and carbonates, specifically barium sulfate, carbonate, etc.). calcium, magnesium sulfate, strontium sulfate, calcium carbonate, etc.)
, silver halide grains that do not form images (silver chloride, silver bromide, etc., to which a small amount of iodine atoms may be added as a halogen component), glass, and the like.

In addition, West German Patent No. 2.529□ 321, British Patent No. 760,775, 1. 260. No. 772, U.S. Patent No. 1,201,905, U.S. Patent No. 2°192.241
No. 3,053,662, No. 3.062,649, No. 3,257,206, No. 3,322.555,
No. 3,353,958, No. 3,370,951, No. 3,411.907, No. 3,437,484, No. 3
, 523°022, 3,615,554, 3,
No. 635.714, No. 3,769,020, No. 4゜0
Inorganic mantle agents described in No. 21.245, No. 4,029,504, etc. can also be used.

Examples of organic matting agents include starch, cellulose esters (e.g., cellulose acetate propionate, etc.)
, cellulose ethers (e.g. ethylcellulose, etc.)
Examples of synthetic resins include water-insoluble or poorly soluble synthetic polymers, such as alkyl acrylate, alkyl methacrylate, alkoxyalkyl acrylate, alkoxyalkyl methacrylate, glycidyl acrylate, glycidyl methacrylate, acrylic acid, Methacrylamide, vinyl esters (e.g. vinyl acetate), acrylonitrile, olefins (e.g. ethylene, etc.), styrene, benzoguanamine formaldehyde condensates, etc. alone or in combination, or together with acrylic acid, methacrylic acid, α, β-
Polymers containing a combination of unsaturated dicarboxylic acids, hydroxyalkyl acrylates, hydroquine alkyl methacrylates, sulfoalkyl acrylates, sulfoalkyl methacrylates, styrene sulfonic acids, etc. as monomer components can be used.

In addition, epoxy resin, nylon, polycarbonate, phenol resin, polyvinylcarbazole, polyvinylidene chloride, etc. can also be used.

In addition, British Patent No. 1,055,713, U.S. Patent No. 1,939,213, U.S. Pat.
, No. 376.005, No. 2゜391.181, No. 2,
No. 701,245, No. 3.0? No. 9,257, No. 3,2
No. 62.782, No. 3,443,946, No. 3,51
No. 6,832, No. 3,539.344, No. 3. 59
No. 1.379, No. 3,754,924, Japanese Unexamined Patent Publication No. 1979-
Matting agents described in Japanese Patent Nos. 106821 and 57-14835 can be used.

Also, U.S. Patent Nos. 4,142,894 and 3.76
It is also possible to use a mantle agent which can be dissolved by a development process as described in No. 7.448 and No. 2,992,101.

Samurai used spherical polymers of water-dispersible vinyl polymers such as homopolymers of acrylic esters such as methyl methacrylate, glycidyl acrylate, and glycidyl methacrylate, or copolymers of these acrylic esters with each other or with other monomers. Mantle agents and benzoguanamine formaldehyde condensation polymers (benzoguanamine resin, specifically those shown by the following formula, such as product Meiko poster; Nippon Shokubai Chemical Co., Ltd. type: Existing Chemical Substance 7-31, etc.)
, polyolefin (for example, trade name Flowbeads LE-1
080, CL-2080, HE-5023; Steel chemical type or product name Chemivar 100; manufactured by Mitsui Petrochemical), polystyrene beads (manufactured by Moritex), nylon pieces (manufactured by Moritex), AS resin pieces
(manufactured by Moritex), epoxy resin beads (manufactured by Moritex), polycarbonate resin (manufactured by Moritex), etc. are preferable.

As an alkali-soluble mantle agent, JP-A-53-7231
Alkali-soluble matting agents such as alkyl methacrylate/methacrylic acid copolymers described in JP-A No. 58-66937 and No. 60-8894; alkali-soluble matting agents having an anionic group described in JP-A-58-166341; Polymers can also be used.

These matting agents may be used in combination.

In the present invention, among the above-mentioned matting agents, particles having a particle size of 5 μm or more are added to 30 vol. of the entire mantle agent. % or more, especially 3
5vol. %~90νo1. Use a matting agent containing %.

In addition, matting agents whose maximum particle size does not exceed 20 μm, and those with a particle size of 10 μm or more are used in a volume of 10 vol. % or less is preferable.

The above matting agent is 0.01 to 1 g/n per support. ,
In particular, a range of 0.1 to 0.5 g/n is preferable.

Examples of the dye used in the backing layer in the present invention for providing an optical density of at least 0.6 in the region from 74Qnm to 840nm include those disclosed in Japanese Patent Application Laid-Open No. 62-12
Cyanine dyes and indoaniline dyes described in No. 3454, No. 62-123454, etc., JP-A-61-174.5
Dyes described in general formulas (I2) to (Id) of No. 40 are mentioned.

As these dyes used in the present invention, water-soluble dyes are useful in order to reduce residual color of treated pieces.

These dyes have an absorption maximum between 740 nm and 840 nm (preferably, between 740 nm and 840 nm).
If it can provide an optical density of at least 0.6 in the region of 740 nm to 84 nm,
It does not necessarily have to exist within the 0 nm range.

In the present invention, in particular, the following general formulas (f a) to (IC)
Dyes represented by are preferably used.

General formula (Ia) General formula (Ib) W' (X), 1z-1 General formula (IC) In the formula (1), 1 is a substituted or unsubstituted alkyl group (for example, 2
-sulfoethyl group, methyl group, ethyl group), substituted or unsubstituted aryl group (e.g. phenyl group, 3-sulfophenyl group, 4-sulfophenyl group, 3.5-disulfophenyl group, 2.5-disulfophenyl group, sulfophenyl group, naphthyl group, etc.), substituted or unsubstituted heterocyclic groups (e.g.
benzothiazolyl group, 1,3.4-thiazolyl group, etc.)
, V: and vS may be the same or different and represent a hydrogen atom or a group capable of substituting it, and V3 and v4 represent a hydrogen atom, a halogen atom (for example, C
1Br, etc.), substituted or unsubstituted alkoxy groups having 1 to 5 carbon atoms (e.g., methoxy, ethoxy, 2-sulfoethoxy, methoxyethoxy, etc.), substituted or unsubstituted alkyl groups (e.g., methyl, ethyl V3 and v4 are never hydrogen atoms at the same time.Vh and 1 may be the same or different from each other. ethyl group, 2-sulfopropyl group, 4-sulfobutyl group, 2-hydroxyethyl group, methyl group, ethyl group, butyl group, etc.), substituted or unsubstituted aryl group (e.g. phenyl group, naphthyl group, etc.), acyl group (e.g., acetyl group, propionyl group, etc.), sulfonyl group (e.g., methanesulfonyl group, ethanesulfonyl group, etc.), or nonmetallic atomic groups necessary for v6 and v7 to connect to form a 5- or 6-membered ring (e.g., pyrrolidine ring, piperidine ring, morpholine ring, etc.), provided that y+, yx, V3v', vs, Vh and ■7
At least one, preferably 2 to 5 of the groups represented by have a sulfo group or a salt thereof, or a carboxyl group or a salt thereof.

The hydrogen atom-substitutable groups represented by yz and vS are:
Halogen atoms (e.g. F, Cj, Br, etc.), hydroxyl groups,
A sulfo group, a carboxyl group, a cyano group, or a substituted or unsubstituted alkyl group having 1 to 5 carbon atoms bonded directly or via a divalent linking group [for example, a methyl group, an ethyl group, etc. (substituents include a sulfo group, carboxyl group, hydroxyl group, etc.)].

Wl, Wt, WS, VJ4, WS, and W6 may be the same or different, and each represents a substituted or unsubstituted alkyl S (e.g., methyl group, ethyl group, 2-carboxyethyl group, 3-sulfopropyl group, 4- sulfobutyl group, etc.), and Q's and Q2 each represent a group of nonmetallic atoms necessary to form a substituted or unsubstituted benzo-fused ring or naphtho-fused ring, provided that Wl
, Wt, W! w', w'%w', Ql, Q
At least 2, more preferably 3 to 6M of these groups represented by t have acid substituents (e.g. sulfonic acid groups or carboxylic acid groups), and particularly preferably 4 to 6 dye molecules. In the present invention, a sulfonic acid group means a sulfo group or a salt thereof, and a carboxylic acid group means a carboxyl group or a salt thereof.

L represents a substituted or unsubstituted methine group, and the substituents of the methine group represented by are bonded together to form a ring containing three methine groups (for example, a 4,4-dimethylcyclohexene ring). X represents an anion (eg, halogen ion (CI, Br), p-toluenesulfonate ion, ethylsulfate ion, etc.).

n2 represents 1 or 2, and is 1 when the dye forms an inner salt.

W7 represents a sulfonic acid group or a carboxylic acid group, and n represents 2.3 or 4.

Among the above, particularly preferred dyes are (Ib) and (I c
).

Specific examples of dyes that can be used in the present invention are shown below.

5Ct (Clh)4SO3K (CHz) s 0x8 (CHt) 325
No. 0, No. 62-123454, No. 61-174540
It is also possible to use those described in Japanese Patent Application No. 174940/1988. These dyes may be used alone or in combination of two or more.

These dyes are used in an amount sufficient to make the backing layer have a transmission optical density of 0.6 or more in the wavelength range of 740 to 840 nm. The specific amount used varies depending on the type of dye, but generally it is 10-"g/rd to 1g/a, especially IO-"g.
/ITr~0. Preferred amounts can be found in the range 5 g/rdI).

Although the object of the present invention has been achieved by providing the above-mentioned backing layer, it can be further achieved by including a substantially amorphous mantle agent on the same side of the support as the photosensitive layer. Ta.

The amorphous cloak agent used in the present invention means an amorphous fine powder, and the fine powder itself does not substantially have a target surface or a target point. The average particle size of the amorphous fine powder is 0.1 μm to 20 μm, preferably 1 μm to IO μm.

Specific examples include silicon dioxide, titanium dioxide, magnesium oxide, aluminum oxide, calcium carbonate, barium sulfate, strontium sulfate, and mixed crystals thereof, manganese colloid, zinc powder, starch, and halogenated materials desensitized by known methods. Examples include silver and synthetic silica. It can also be obtained by pulverizing an inorganic or organic polymer compound with a relatively large particle size and then classifying it.

The above amorphous mantle agents may be used alone or in combination. In particular, in order to improve adhesion resistance without impairing transparency, spherical mantle agents may be used without losing the effect of the present invention. A small amount may be used in combination.

The layer to which the matting agent is added is a non-photosensitive protective layer above the emulsion layer, and may be composed of IN or two or more layers, and in the case of multiple layers, it is desirable to add it to the uppermost layer.

The amount of the mantle agent added is 10 to 400 ml/d, preferably 20 to 200 ml/d.

The silver halide used in the present invention may be any one of silver chloride, silver bromide, silver iodide, silver chlorobromide, silver chloroiodide, silver iodobromide, silver chloroiodobromide, etc. Among the above silver halides, silver chlorobromide, silver chlorobromide, and silver iodobromide are preferred, and more preferably silver chlorobromide or silver chloroiodobromide containing 0 to 1 mol% of silver iodide. Silver is advantageously used.

These emulsions may be coarse grains, fine grains, or mixed grains thereof, and these silver halide grains are prepared by known methods such as single jet method, double jet method,
Alternatively, it is formed by a controlled double jet method.

Furthermore, even if the crystal structure of silver halide grains is similar up to the inside, there are also those with a layered structure with different inside and outside, British Patent No. 635.841, Visiting Patent No. 3,62, etc.
The particles may be of the so-called conversion type as described in No. 2,318, or may be of the type in which a latent image is mainly formed on the surface, or of the internal latent image type in which the latent image is formed inside the particles. These photographic emulsions are Mies (Me
es), [The Theory of the Photographic Process]
PhotographrcProcess) J
Published by iacMtllan, graphite material laf 1k
ides), [Photographic Chemistry (
Photographic Chemistry) J
Published by Fountain Press, etc., Research Disclosure vol. 176 t'19
(December 1978) Also described in RD-17643, generally accepted ammonia method, neutral method, acid method, etc.
It can be adjusted in various ways.

The grain size distribution of the silver halide emulsion of the present invention is preferably so-called monodisperse.

The average diameter of the silver halide grains (measured by, for example, the projected area method or number average) is preferably about 0.04 μm to 4 μm. Particularly preferred is one having a diameter of 0.7 μm or less.

During the formation of silver halide grains, silver halide solvents such as ammonia, rhodanpotash, rhodanammonium, and thioether compounds (e.g., U.S. Pat. Nos. 3,271,157, 3,57
No. 4,628, No. 3.704,130, No. 4,297
, No. 439, No. 4,276.374, etc.), thione compounds (e.g., JP-A-53-144319, No. 53)
-82408, No. 55-77737, etc.), amine compounds (for example, JP-A-54-100717, etc.), etc. can be used.

Further, water-soluble rhodium and/or water-soluble iridium can be added during the formation of the silver halide grains, before or after the formation of the grains.

Silver halide photographic emulsions can be prepared using commonly used chemical sensitization methods, such as gold sensitization (U.S. Pat. No. 2,540.085,
U.S. Patent No. 2,597,876, U.S. Patent No. 2597.915, U.S. Pat.
No. 086, No. 2゜566.245, No. 2,566.2
63, US Pat. No. 2.598.079, etc.), sulfur sensitization (US Pat. No. 1,574..944, US Pat. No. 2,278,94, etc.)
No. 7, No. 2.440,206, No. 2.521926, No. 3,021,215, No. 3,038.805,
U.S. Pat. No. 2.410,689, U.S. Pat. No. 3.189.458, U.S. Pat. 2
．． 419. No. 974, No. 2,983,610, Research Disclosure+-VO1,176 (1978
RD-17643, Section 2), sensitization with thioether compounds (for example, U.S. Pat.
．． No. 926, No. 3.021.215, No. 3.038.
No. 805, No. 3.046,129, No. 3.046,1
No. 32, No. 3.046,133, No. 3,046.13
No. 4, No. 3,046,135, No. 3,057.724
No. 3. 065. No. 646, 3,165,55
No. 2, No. 3,189°458, No. 3,192.046
No. 3,506.443, No. 3.671.260, No. 3574.709, No. 3,625,697, No. 3.635,717, No. 4,198,240, etc.)
, or a combination of various sensitization methods.

Further, specific chemical sensitizers include sulfur sensitizers such as allyl thiocarbamide, 1,000 urea, sodium thiosulfate, thioether and cystine; Potassium chlorovaradate (potassium chlorovaradate)
and reduction sensitizers such as tin chloride, phenylhydrazine, and reductone.

Other polyoxyethylene derivatives (British patent tube 981
．． No. 470, Japanese Patent Publication No. 31-6475, U.S. Patent No. 2,
716,062), polyoxypropylene derivatives, and derivatives having a quaternary ammonium group.

The silver halide emulsion of the present invention is infrared sensitized to have a maximum sensitization in a wavelength range of 750 nm or more.

Any sensitizing dye may be used for infrared sensitization, but from the viewpoint of sensitization performance and stability, tricarbocyanine dyes and/or 4-quinoline nucleus-containing dicarbocyanine dyes are particularly preferred. preferable.

Among the tricarbocyanine dyes used in the present invention, particularly useful ones are those represented by the following general formula (I[a) or (nb).

General formula (Ila) (X-)--+ General formula (nb) In the formula, RI and R may each be the same or different, and each is an alkyl group (preferably having 1 to 8 carbon atoms).
, such as methyl group, ethyl group, propyl group, butyl group,
pentyl group, heptyl group, etc.), substituted alkyl group (W
Examples of substituents include carboxy group, sulfo group, cyano group,
Halogen atoms (e.g. fluorine atom, chlorine atom, bromine atom, etc.), hydroxyl group, alkoxycarbonyl group (8 or less carbon atoms, e.g. methoxycarbonyl group, ethoxycarbonyl group, benzyloxycarbonyl group), alkoxy group (number of carbon atoms 7 or less, such as methoxy group, ethoxy group, propoxy group, butoxy group, benzyloxy group, etc.), aryloxy group (such as phenoxy group,
p-tolyloxy group, etc.), acyloxy group (3 or less carbon atoms, e.g. acetyloxy group, propionyloxy group, etc.), acyl group (8 or less carbon atoms, e.g. acetyl group, propionyl group, benzoyl group, mesyl group, etc.) , carbamoyl group (e.g. carbamoyl M, N, N-
dimethylcarbamoyl group, morpholinocarbamoyl group,
piperidinocarbamoyl group, etc.), sulfur 1-moyl group (
For example, sulfamoyl group, N,N-dimethylsulfamoyl group, morpholinosulfonyl group, etc.), aryl group (
For example, phenyl L p-hydroxyphenyl L p-carboxyphenyl group, p-sulfophenyl group, α-naphthyl group, etc.)), etc.), etc.), etc.) (the number of carbon atoms in the alkyl moiety is 6 or less), however, this substituent A combination of two or more may be substituted with an alkyl group. ).

R represents a hydrogen atom, a methyl group, a methoxy group, or an ethoxy group.

R1 and R4 are each a hydrogen atom, a lower alkyl group (e.g. methyl group, ethyl group, propyl group, etc.), a lower alkoxy group (e.g. methoxy group, ethoxy group, propoxy group,
(butoxy group, etc.), phenyl group, benzyl group.

R3 is a hydrogen atom, a lower alkyl group (e.g., methyl group, ethyl group, propyl group, etc.), a lower alkoxy group (e.g., methoxy group, ethoxy group, 10-boxy group, butoxy group, etc.), phenyl group, benzene, each substituted or unsubstituted Alkyl group (alkyl moiety has 1 to 18 carbon atoms, preferably 1 to 4 carbon atoms, such as methyl group, ethyl group, propyl group,
butyl group, hensyl group, phenylethyl group), aryl group (for example, phenyl group, naphthyl group, tolyl group, p-chlorophenyl group, etc.), and W and R2 are connected to each other to form a 5- or 6-membered A nitrogen-containing heterocycle can also be formed.

D represents a group of atoms necessary to complete a divalent ethylene bond, e.g. ethylene or triethylene, and this ethylene bond is supported by one, two or more suitable groups, e.g. Alkyl groups (e.g. methyl, ethyl, propyl, isopropyl, butyl, etc.), halogen atoms (e.g. chlorine, bromine, etc.), or alkoxy groups (1 to 4 carbon atoms, e.g. methoxy, ethoxy) , propoxy group, isopropoxy group, butoxy group, etc.).

D and D2 each represent a hydrogen atom. However, D.
and Dt can also form a divalent ethylene bond having the same meaning as above.

Z and Zl each represent a nonmetallic atomic group necessary to complete a 5- or 6-membered nitrogen-containing heterocycle, such as a thiazole nucleus [e.g., benzothiazole, 4-chlorobenzothiazole, 5-chlorobenzothiazole, 6- Chlorbenzothiazole, 7-chlorobenzothiazole, 4-methylbenzothiazole, 5-methylbenzothiazole, 6-methylbenzothiazole, 5-bromobenzothiazole,
6-bromobenzothiazole, 5-iodobenzothiazole, 5-phenylbenzothiazole, 5-methoxybenzothiazole, 6-methoxybenzothiazole, 6-
Nitoxybenzothiazole, 5-carboxybenzothiazole, 5-ethoxycarbonylbenzothiazole, 5
- phenethylbenzothiazole, 5-fluorobenzothiazole, 5-trifluoromethylbenzothiazole,
5゜6-dimethylbenzothiazole, 5-hydroxy-
6-methylbenzothiazole, tetrahydrobenzothiazole, 4-phenylbenzothiazole, naphtho(2,
1-d) Thiazole, naphtho[1°2-d]thiazole, naphtho(2,3-d)thiazole, 5-methoxynaphtho(1,2-d)thiazole, 7-nitoxynaphtho(2
,1-d)thiazole,8-methoxynaphtho(2,1-
d) Thiazole, 5-methoxynaphtho(2,3-d)thiazole, etc.], zelenazole core [e.g. penzozelenazole, 5-chlorobenzimidazole, 5-methoxybenzozelenazole, 5-methylbenzoxazole,
5-hydroxybenzoxazole, naphtho(2,1-
d) Zelenazole, naphtho(1,2-d)zelenazole, etc.], oxazole core [benzoxazole, 5-chlorobenzoxazole, 5-methylbenzoxazole, 5-bromobenzoxazole, 5-fluorobenzoxazole, 5-phenylbenzo Oxazole, 5
-methoxybenzoxazole, 5-trifluorobenzoxazole, 5-hydroxybenzoxazole,
5-carboxybenzoxazole, 6-methylbenzoxazole, 6-chlorobenzoxazole, 6-methoxybenzoxazole, 6-hydroxybenzoxazole, 4.6-dimethylbenzoxazole, 5-
ethoxybenzoxazole, naphtho(2,1-d]oxazole, naphtho(1,2-d)oxazole, naphtho(2,3-d)oxazole, etc.), quinoline nucleus [e.g. 2-quinoline, 3-methyl 2-quinoline , 5-ethyl-2-quinoline, 6-methyl-2-quinoline, 8-fluoro-2-quinoline, 6-medoxy-2-quinoline,
6-hydroxy-2-quinoline, 8-chloro-2-quinoline, 8-fluoro-4-quinoline, etc.), 3,3-dialkylindolenine core (e.g. 3,3-dimethylindolenine, 3,3-diethyl Indolenine, 3,3-
Dimethyl-5-cyanoindolenine, 3, 3-'; Methyl-5-methoxyindolenine, 3, 3-', 'Methyl-5-methylindolenine, 3゜3-dimethyl-5
-chlorindolenine, etc.), imidazole nuclei (e.g., ■-methylbenzimidazole, 1-ethylbenzimitazole, 1-methyl-5-chlorobenzimidazole, 1-ethyl-5-chlorobenzimidazole, ■-methyl-5, 6-dichlorobenzimidazole, ■ Ethyl-5.6-dichlorobenzimidazole, l-alkyl-5-methoxybenzimidazole, 1-methyl-5-
Cyanobenzimidazole, l-ethyl-5-cyanobenzimidazole, 1-methyl-5-fluorobenzothiazole, ■-ethyl-5-fluorobenzimidazole, 1-phenyl-5,6-dichlorobenzimitazole, 1 -allyl-5,6-dichlorobenzimidazole,
1-allyl-5-chlorobenzimidazole, l-phenylbenzimidazole, ■-phenyl-5-chlorobenzimidazole, 1-methyl-5-trifluoromethylbenzimidazole, l-ethyl-5-trifluoromethylbenzimidazole, ■- Ethylnaphtho (1,2-d
) imidazole), pyridine core (e.g. pyridine,
5-methyl-2-pyridine, 3-methyl-4-pyridine, etc.). Among these, thiazole nuclei and oxazole nuclei are preferably used.

More preferably, a benzothiazole nucleus, a naphthothiazole nucleus, a naphthoxazole nucleus, or a benzoxazole nucleus is advantageously used.

X represents an acid anion.

n represents l or 2.

Among the 4-quinoline nucleus-containing dicarbonanine dyes used in the present invention, particularly useful ones have the following general formula % General formula (■C) (X +-)- In the formula, R4 and R7 are R,, Rz and Rz, respectively. Expresses the same meaning.

R6 has the same meaning as R1, provided that R8 is preferably a lower alkyl group or a Hensyl group.

■ is a hydrogen atom, a lower alkyl group (e.g. methyl group, ethyl group, propyl group, etc.), an alkoxy group (e.g. methquine group, ethoxy group, butoxy group, etc.), a halogen atom (
For example, fluorine atoms, chlorine atoms, etc.), substituted alkyl groups (
For example, trifluoromethyl, carboxymethyl, etc.).

(n zlls CH, C0OH ■ ([1 tHs (CHHz)rsOz ■ ([+ Z! represents the same meaning as Z and zl.

X represents the same meaning as X.

mSn+ and p each represent l or 2.

Specific examples of the sensitizing dye used in the present invention are shown below. However, the present invention is not limited to these sensitizing dyes.

ztls zHs ■ zHs sH7 ■− O3 (n zHS tHs r zlls tHs ■ (CIlt) xSOs Ct If.

(n-19) (■ L (Law 21) 11 C4 (I+-151 C low H5 (■ (■ (■-18) (■ (n-23) (■ (■ Ct)Is H, to.

C,Hs Js ■ C,)l.

■zHs! (■-26) (■ ([+-28) (mouth (■-34) ([1-36) (■-37) (CLJxsO3 tHs (C)It) -50s tlls Js HtCOO Js ■= (■- 31) (■ (II-33) (■ (■ (II-401) (■ l0a (CIri zSOff- (C)12)!01( r (C)It) isOx (CL) m5O=Na tHs (n- 42) CI on- The above-mentioned infrared sensitizing dye used in the present invention has a concentration of 5 X 10-' mol-5 X 10-' mol per mol of silver genide,
Particularly preferably 2 X 10-'mol-5X10-'
The infrared sensitizing dye used in the present invention can be directly dispersed into the emulsion. In addition, these can be prepared using a suitable solvent,
For example, it can be dissolved in methyl alcohol, ethyl alcohol, methyl cellosolve, acetone, water, pyridine, or a mixed solvent thereof, and added to the emulsion in the form of a solution.

Ultrasonic waves can also be used for dissolution. Further, as a method of adding the above-mentioned infrared sensitizing dye, US Pat.
69.987, a method in which a dye is dissolved in a volatile organic solvent, the solution is dispersed in a hydrophilic colloid, and this dispersion is added to an emulsion, Japanese Patent Publication No. 46
A method of dispersing a water-insoluble dye in a water-soluble solvent without melting it and adding this dispersion to a milk 6 agent, as described in U.S. Pat. No. 3,822,135, etc.
As described in the specification, the dye is dissolved in a surfactant,
Method of adding the solution into an emulsion; JP-A-51-7462
A method of dissolving a red-shifting compound as described in No. 4 and adding the solution to an emulsion;
A method such as that described in Japanese Patent No. 80826 is used, in which a dye is dissolved in an acid substantially free of water, and the solution is added to an emulsion. Other additions to emulsions include U.S. Pat.
No. 12, 343, No. 3.342.605, No. 2,
The methods described in No. 996.287, No. 3,429,835, etc. can also be used. Also, the above-mentioned infrared sensitizing dyes (11) may be uniformly dispersed in the silver halide emulsion before being coated on a suitable support, but of course any step in the preparation of the silver halide emulsion may be used. It can also be distributed.

The sensitizing dye according to the present invention may be used in combination with other sensitizing dyes, such as U.S. Pat. No. 3,703.3.
No. 77, No. 2,688,545, No. 3,397,
No. 060, No. 3.615635, No. 3.628,
964, British Patent No. 1,242,588, British Patent No. 1,
No. 293, 862, Special Publication No. 43-4936,
No. 44-14030, No. 43-10773, U.S. Patent No. 3.

416,927, Japanese Patent Publication No. 43-4930, U.S. Pat. No. 3,615.613, U.S. Patent No. 3,615.

No. 632, No. 3,617,295, No. 3635,
Sensitizing dyes described in No. 721 and the like can be used in combination.

In the present invention, compounds having a supersensitizing effect or stabilizing effect on the above-mentioned infrared sensitizing dye can be used.Among the compounds having a supersensitizing effect or a stabilizing effect, particularly Useful are, for example, the bis-triazine compounds or bis-triazine compounds of the general formula ([ff) of U.S. Pat. No. 4,536,473;
A nitrogen-containing heterocyclic compound represented by V) or a water-soluble bromide or the general formula (Ila) of JP-A No. 62-299838
Or it is an azaindene-based compound represented by (b).

The photographic emulsion of the present invention is used for improving image quality, for example, in Japanese Patent Application Laid-Open No. 62-123454, Japanese Patent Application No. 61141617,
Cyanine dyes and indoaniline dyes described in JP-A No. 61-142255 and the like, and dyes represented by general formulas (Ta) to (Id) in JP-A-61-174540 can be used. In addition to the above-mentioned dyes, for example, U.S. Pat.
pyrazolone oxonol dyes described in US Pat. No. 782, diarylazo dyes described in US Pat. No. 2,956,879, US Pat.
, No. 487, styryl dyes and butadienyl dyes,
Merocyanine dyes as described in U.S. Pat. No. 2,527,583, U.S. Pat. No. 3.

No. 486, 897, No. 3,652,284, No. 3
, 718,472, enamine hemyoxonol dyes described in U.S. Pat. No. 3,976.661, and British Patent No. 584,
No. 609, No. 1,177.429, Japanese Unexamined Patent Publication No. 1977-8
No. 5130, No. 49-99620, No. 49-1144
No. 20, U.S. Patent No. 2,533,472, U.S. Patent No. 3,1
48゜187, same No. 3,177.078, same No. 3, 247.127, same No. 3,540,887, same No. 3
, No. 575, 704, No. 3. 653. The dye described in No. 905 may be used in combination.

Various compounds can be added to the photographic emulsion of the present invention in order to prevent a decrease in sensitivity and the occurrence of fog during the manufacturing process, storage or processing of the light-sensitive material.

These compounds include nitrobenzimidazole, ammonium chlorobratinate, 4-hydroxy-6-methyl-1,3,3a, ? Many heterocyclic compounds, mercury-containing compounds, including -tetraazaindene, 3-methylbenzothiazole, -phenyl-5-mercaptotetrazole,
A large number of compounds such as mercapto compounds and metal salts have been known since ancient times. An example of a compound that can be used is K.
, Mees, “The Theory of the
Photographic Ink Process (The Theory)
of the Photographic Process
ss)” (3rd edition, 1966) pp. 344-349
The original documents are listed on the page. Other compounds include, for example, U.S. Patent No. 2,131,038 and U.S. Pat.
694. Thiazolium salts described in U.S. Patent Nos. 2,886,437 and 2,444, etc.
Azainden neck described in US Patent No. 3,287.135 etc.; Sulfocatechol neck described in US Patent No. 3.236.652 etc.; British patent No. 623.44
Oximes described in US Pat. No. 8, etc.; US Patent No. 2.
No. 403,927, No. 3,266.897, No. 3,3
mercaptotetrazoles, nitrones; nitroindazoles; polyvalent metal 5 alts as described in U.S. Pat. No. 2,839.405, etc.;
; thiuronium salts (thiuronium 5al) described in U.S. Pat.
ts); U.S. Patent No. 2.566.263, 2.
Examples include palladium, platinum and gold salts, such as those described in No. 597.915.

Silver halide photographic emulsions contain developing agents such as hydroquinones; catechols; aminophenols; 3-pyrazolidones; ascorbic acid and derivatives thereof; reductones, phenylenediamines, or a combination of developing agents. be able to. The developing agent may be incorporated into the silver halide emulsion layer and/or other photographic layers (eg, retention layer, interlayer, filter layer, antihalation layer, back layer, etc.). The developing agent may be dissolved in a suitable solvent or as described in US Pat.
2,368 and in the form of a dispersion as described in French Patent No. 1,505,778.

As a development accelerator, for example, U.S. Patent No. 3,288.6
No. 12, No. 3,333,959, No. 3345.175
No. 3,708.303, British Patent No. 1,098,
No. 748, West German Patent No. 1.141,531, No. 1
, 183.784 and the like can be used.

In the present invention, U.S. Pat.
．． 224.401, 4,243.739, 4,
Nucleating agents described in No. 272,606, No. 4゜311.781, etc. can be used.

Also, JP-A-52-18317, JP-A No. 53-7719
No. 53-17720, No. 59-228645,
Tetrazolium compounds described in No. 60-31134, No. 59231527, etc. can be used.

Hardening of the emulsion can be carried out according to conventional methods. Examples of curing agents include aldehyde compounds such as formaldehyde and glutaraldehyde; ketone compounds such as diacetylcyclopentanedione; his(2-chloroethylurea), 2-hydroxy-4,6-dichloro-1,3,
5-triazine, etc. U.S. Patent 3,288.775
No. 2.732.303, British Patent No. 974,723
Compounds containing reactive halogens such as those shown in No. 1,167.207; divinyl sulfone, 5
-acetyl-1,3-diacryloylhexahydro-1
, 3,5-triazine, etc. U.S. Patent No. 3.635,
No. 718, No. 3,232.763, British Patent No. 994,
Compounds with reactive olefins such as those shown in No. 869; N-hydroxymethylphthalimide;
Other U.S. Patents Nos. 2,732,316 and 2,586.
N-methylol compounds such as those shown in US Pat. No. 168; isocyanates such as those shown in US Pat. No. 3,103,437; US Pat. No. 3,017,280
No. 2. 983. Aziridine compounds as shown in US Pat. No. 611, etc.; acid derivatives as shown in US Pat. No. 2,725,294, US Pat. No. 2,725.295, etc.; US Pat. Carbodiimide compounds such as those shown in U.S. Patent No. 3,09
Epoxy compounds as shown in U.S. Pat. No. 1.537, etc.; U.S. Pat.
Isoxazole compounds such as those shown in No. 2; halogenocarboxaldehydes such as mucochloric acid; dioxane derivatives such as dihydroxydioxane and dichlorodioxane; etc. Moreover, instead of the above-mentioned compounds, compounds in the form of precursors such as alkali metal bisulfite aldehyde adducts, methylol derivatives of hydantoin, i-class aliphatic ditroalcohols, etc. may be used.

Surfactants may be added alone or in combination to the photographic emulsion of the present invention.

Although they are used as coating aids, they are sometimes applied for other purposes, such as emulsifying and dispersing, improving sensitized photographic properties, antistatic, antiadhesive, etc.

These surfactants include natural surfactants such as saponins,
Nonionic surfactants such as alkylene oxide, glycerin, and glycidol, higher alkyl amines,
Quaternary ammonium salts, pyridine and other heterocycles,
Cationic surfactants such as phosphonium or sulfoniums, anionic surfactants containing acidic groups such as carboxylic acids, sulfonic acids, phosphoric acids, sulfate ester groups, phosphoric ester groups, amino acids, aminosulfonic acids, and sulfuric or phosphoric acids of amino alcohols. It is divided into amphoteric active agents such as esters.

Some examples of surfactant compounds that can be used include U.S. Pat.
, No. 288, 266, No. 2,739.891, No. 3,
No. 068,101, No. 3゜158.484, No. 3,2
No. 01,253, No. 3.210,191, No. 3.29
4.540, 3,415,649, 3,441
, No. 413, No. 3,442,654, No. 3. 475
．． No. 174, No. 3,545,974, German Patent No. 1,942,665, British Patent No. 1,077゜317, No. 1,198.450, Japanese Patent Publication No. 56444
No. 11, "Synthesis of Surfactants and Their Applications" by Ryohei Oda et al. (Maki Shoten 1964 edition) and "Surface Active Agents" by A. W. Berry (Interscience Publications Inc. 1858 edition) , J.

It is described in the bottom of books such as "Encyclopedia of Surface Active Agents Volume 2" (Chemical Bubbles Company, 1964 edition) by John P. Sisley.

In the silver halide photographic emulsion used in the present invention, in addition to gelatin, protective colloids include acylated gelatin such as phthalated gelatin and malonated gelatin, cellulose compounds such as hydroxyethyl cellulose and carboxymethyl cellulose; Soluble starch; hydrophilic polymers such as polyvinyl alcohol, polyvinylpyrrolidone, polyacrylamide and polystyrene sulfonic acid may be added.

The present invention preferably uses polyalkylene oxide compounds such as alkylene oxides having 2 to 4 carbon atoms, such as ethylene oxide, propylene-1,2-oxide, butylene-1,2-oxide, etc., preferably at least at the 11th position of ethylene oxide. A condensate of a polyalkylene oxide consisting of a polyalkylene oxide and a compound having at least one active hydrogen atom such as water, an aliphatic alcohol, an aromatic alcohol, a fatty acid, an organic amine, a hexitol derivative, or a block of two or more polyalkylene oxides. Copolymers and the like can be used. That is, as the polyalkylene oxide compound, specifically, the polyalkylene oxide compounds described in JP-A-50-156423, JP-A-52-108130, and JP-A-53-3217 can be used.

Also, U.S. Patent No. 3,411.911, U.S. Pat.
No. 912, No. 3,142,568, No. 3.325, 2
No. 86, No. 3,547,650, Special Publication No. 45-533
A polymer latex consisting of a homopolymer or copolymer of alkyl acrylate, alkyl methacrylate, acrylic acid, glycidyl acrylate, etc. described in No. 1 etc. is contained for the purpose of improving the dimensional stability of the photographic material, improving the physical properties of the film, etc. be able to.

Silver halide photographic emulsions may also contain antistatic agents, plasticizers, optical brighteners, air antifoggants, toning agents, and the like.

The silver halide photographic emulsion of the present invention can contain color pigments such as cyan coupler, magenta coupler, yellow coupler, etc.
It can include a coupler and a compound that disperses the coupler.

That is, these couplers may contain a compound that can develop a color by oxidative camping with an aromatic primary amine developer (for example, phenylene diamine 121iI, aminophenol derivative, etc.) during color development processing. A non-diffusing material having a hydrophobic group called a group is desirable.

The coupler may be either 4-equivalent or 2-equivalent to silver ions, and may be a colored coupler that has a color correction effect or a coupler that releases a development inhibitor during development (so-called DIR coupler). .

In addition to the DIR coupler, the product of the campling reaction is colorless and may contain a colorless DIR coupling compound that releases a development inhibitor.

In addition, a color image can also be formed by developing with a color developer containing a diffusible coupler.

In addition, as an irradiation prevention dye that may be contained depending on the purpose, for example, Japanese Patent Publication No. 41-20389, No. 4
No. 3-3504, No. 43-13168, U.S. Patent No. 2
, No. 697.037, No. 3゜423.207, No. 2,
No. 865,752, British Patent No. 1.030.392;
Those described in 1,100゜546 and the like are used.

The present invention can be applied to the sensitization of silver halide emulsions used in various color brightening materials as well as black and white photographic emulsions.

Furthermore, in addition to the emulsion layer of the present invention, an emulsion layer having photosensitivity in other spectral regions may be layered to form a so-called multilayer multicolor photosensitive material.

Exposure to obtain a photographic image may be carried out using a conventional method. i.e. natural light (sunlight), tungsten electric light,
There are many types of known infrared light sources, such as mercury lamps, xenon arc lamps, carbon arc lamps, xenon flash lamps, cathode ray tube flying spots, light emitting diodes, and laser lights (e.g. gas lasers, dye lasers, YAG lasers, semiconductor lasers, etc.). Any light source can be used. Alternatively, exposure may be performed using light emitted from a phosphor excited by electron beams, X-rays, γ-rays, α-rays, or the like. Exposure time is 1/1000 second to 1, which is normally used in cameras.
Not only exposure times of seconds, but also exposures shorter than 1/1000 seconds, such as xenon flash lamps or cathode ray tubes, are used.
Exposures of 10' to 1/10' seconds can be used, or exposures longer than 1 second can be used.

If necessary, the spectral composition of the light used for exposure can be adjusted using a color filter.

The photographic emulsion of the present invention can be coated on a flexible support such as a plastic film (cellulose nitrate, cellulose acetate, polyethylene terephthalate, etc.), paper, or a rigid support such as glass, which is commonly used in photographic light-sensitive materials. Ru. For details on the support and coating method, please refer to Research Disclone +-1F 6 volumes + tes17643XV
It is described in Section (p. 27) Ji (p. 28) (December 1978 issue).

Any known method can be used for photographic processing of the light-sensitive material produced by applying the present invention.

A known treatment liquid can be used. The processing temperature is usually selected between 18°C and 50°C, but it may also be lower than 18°C or above 50°C, depending on the purpose. Any color photographic process consisting of a development process to form an image can be applied.

As for black and white photographic processing, development with phenidone-hydroquinone or methol-hydroquinone, etc. is of course possible, and for example, lithium-type silver halide sensitive materials made of silver chlorobromide can be processed with extremely low sulfite ion concentration (0.1 mol/j).
! Below) A method of processing with a hydroquinone developer (lith developer), and a method of processing the above-mentioned lith type silver halide sensitive material with a hydroquinone developer, since the sulfite ion concentration is quite high.
．． A system in which high-contrast images can be obtained by using a developer containing a high pH (10.5 or higher) and a nitroindazole compound (Japanese Unexamined Patent Publication No. 58-190
Furthermore, there is a method of obtaining a sharp contrast by processing a photosensitive material containing a tetrazolium compound with a PQ type or MQ type developer containing a relatively high concentration of sulfite (for example, JP-A-52-18317, 53
-17719 and No. 53-17720. ), and U.S. Patent Nos. 4,166.742 and 4,168.9
No. 77, No. 4,221,857, No. 4゜224.40
No. 1, No. 4,243,739, No. 4.272,606
No. 4,311.781, a surface latent image type silver halide photographic light-sensitive material to which a specific acylhydrazine compound has been added is prepared at a pH of 11.0 to 12.3 and 0.00% of a sulfite preservative. A method of forming an ultra-high contrast negative image with γ of more than 10 by processing with a developer containing 15 mol/1 or more and having good storage stability may also be used.

For details, see Research Disclosure Volume 176,
Volume 17643, pages 28-29, Volume 187 & 1871
The development process can be carried out by the method described in the left column and right column on page 651 of 6.

The present invention can also be applied to light-sensitive materials with a low silver content, in which the amount of silver halide in the emulsion is several times to one-hundredth of that of ordinary light-sensitive materials.

Although it is advantageous to use gelatin as the binder for the backing layer of the present invention, other hydrophilic colloids may also be used6, such as gelatin derivatives, graft polymers of gelatin and other polymers, albumin, casein, etc. proteins; cellulose derivatives such as hydroxyethyl cellulose, carboxymethyl cellulose, cellulose sulfate esters, sodium alginate, starch derivatives, etc. = Conductor; various synthetic highly hydrophilic materials such as single or copolymers of polyvinyl alcohol, polyvinyl alcohol partial acetal, poly-N-vinylpyrrolidone, polyacrylic acid, polymethacrylic acid, polyacrylamide, polyvinylimidazole, polyvinylpyrazole, etc. Molecular substances can be used.

In addition to general-purpose lime-processed gelatin, gelatin may be used as acid-processed gelatin or as described in the Journal of the Japanese Society of Scientific Photography (Bul I).

Soc, Sci, Phot, Japan), I
Enzyme-treated gelatin as described in Ik 16, p. 30 (1966) may be used, and gelatin hydrolysates may also be used.

In addition, the backing layer of the present invention may contain various additives, such as hardeners, thickeners, etc., in addition to the fine particle powder and dye of the present invention.
It may contain a pH adjuster, a dimensional stabilizer, a surfactant, a charge control agent, a slipping agent, a dye for improving image quality, safe light safety from the Bc surface, and ability to distinguish between front and back sides.

The backing layer may be composed of a single layer or may be composed of 2N or more. When composed of two or more layers, the dye and matting agent may be added to the same layer or to separate layers. Good too. For example, the puffing layer may be composed of two layers, with a dye added to the lower layer (N closer to the support) and a matting agent added to the upper layer (N farther from the support). The binder may be contained in the lower layer, and the upper layer may be substantially only a binder layer.

The thickness of the backing layer is preferably 0.5μ to IOμ, particularly preferably 1μ to 5μ, because if the thickness is in this range, the effect of improving conveyance by the matting agent of the present invention will be noticeable.

In the present invention, a slip agent can be contained in the emulsion layer, protective layer, and backing layer.

The slip agent is not particularly limited, and any compound may be used as long as it reduces the friction coefficient of the object surface when it is present on the object surface compared to when it is not present.

Typical slip agents used in the present invention include, for example, U.S. Patent No. 3,042,522 and British Patent No. 955.
．． No. 061, U.S. Patent No. 3,080.317, U.S. Patent No. 4,
No. 004,927, No. 4゜047.958, No. 3,4
No. 89.567, silicone slip agents described in British Patent No. 1,143.118, etc., U.S. Patent No. 2,454,0
No. 43, No. 2,732,305, No. 2,976.14
No. 8, No. 3,206.311, German Patent No. 1. 28
Higher fatty acid-based, alcohol-based, acid amide lint removal agents described in No. 4.295, No. 1,284,294, etc., British Patent No. 1,263.722, U.S. Patent No. 3,933.51
Metal soap described in No. 6, etc., U.S. Patent No. 2.588.7
No. 65, No. 3,121゜060, British Patent No. 1,19
Ester-based and ether-based slip agents described in 8.387, etc., U.S. Patent Nos. 3,502,473 and 3,042,2
There are taurine-based slip agents described in No. 22.

Next, the present invention will be explained in more detail with reference to Examples. However, the present invention is not limited to these examples.

Example 1 Silver chloroiododobromide emulsion containing 35 mol% silver chloride and 0.2 mol% silver iodide (cubic grains, average grain size 0.3.c)
lm) 1 kg of infrared sensitizing dye represented by I-6
．． A 05% solution of 601R1 was added to aggravate the infrared region. For supersensitization and stabilization, 4,4'-
Bis-(4,6-dinaphthoxypyrimidin-2-ylamino)-stilhendisulfonic acid disodium salt 0
．． 5% methanol solution 70- and 2,5-dimethyl-3-
A 90% solution of allyl-hendithiazole iodo salt in 0.5% methanol was added. A hardener, latex polymer, and surfactant were further added to coat the emulsion layer on a transparent film support. The amount of 1M applied in the emulsion layer is 3.7g.
/n(was.

On the upper part of the emulsion layer, as a protective layer, a hardening agent, a surfactant for coating properties and charge control, and a PMMA matting agent with an average particle size of 2.3 μm are mixed in an aqueous gelatin solution at 50μ/r+I.
It was coated with the following content. The amount of gelatin in this protective layer was 1.0 g/kg. Viewed from the support, these emulsion layers and retention 3! On the opposite side of the layer, in an aqueous gelatin solution, the PMMA cloak agent shown in the table below and the dye v-
2 was added to give an optical density of 0.9, a latex polymer, a surfactant, and a hardening agent were added to form a puffing layer. The amount of gelatin in this puffing layer is 3.9
g/rr+. The dry thickness was 3°0μ.

The photosensitive material thus obtained was 50CIlX50a.
We cut 100 pieces of photosensitive material into pieces of m in size and stacked them, used a suction cup to suck up the edges of the photosensitive material, and counted the number of times the second photosensitive material was lifted up together with the photosensitive material during 10,000 conveyances. Obtained the results in the table.

Table 1 In the case of the present invention, the number of times the second sheet is lifted is clearly reduced. In Stet, there are cases where 3 to 5 pieces can be lifted together, but in the case of -1, 3 out of 19 times, positive 2
Case 3.1 of the present invention was observed 1 out of 10 times.
It was not observed at t14. This also shows that the effects of the present invention are significant.

Toryojin Example 2 A sample was prepared in the same manner as in Example 1 except that the wall of Dye A was changed. These samples were subjected to scanning exposure to a width of 76 μm using a semiconductor laser with a wavelength of 780 nm, and developed at 38° C. for 20 seconds using a Fuji Film FG360F automatic processor and a developer LD835 manufactured by Fuji Film. The fixer was LF308 manufactured by Fuji Film.

When we evaluated the Wi quality (line blur) of the scanning line of the processed photosensitive material obtained in this way, we obtained the results shown in the following table (A: no blur, E: extremely large blur; A-E). (Evaluation divided into 5 stages).

Table 2 Example 3 A sample was prepared in the same manner as in Example 1, except that the type and amount of the matting agent in the protective layer and the amount of dye in the buffing layer were changed.

These samples were subjected to scanning exposure with a width of 76 μm using a semiconductor laser with a wavelength of 780 nm, using a Fuji Photo Film Co., Ltd. FC660F automatic processor, using Fuji Photo Film Co., Ltd. LD835 as a developer and Fuji Photo Film as a fixer. The film was developed using LF308 (manufactured by Kogyo Corporation).

The image quality and adhesion resistance of the scanning line of the processed photosensitive material thus obtained were evaluated, and the results shown in the following table were obtained.

(Note) Adhesion resistance Stack samples and heat (40℃8)
The ease of adhesion after being left at 0% for 1 day was evaluated.

5-level evaluation (A: Good [Do not adhere) I]~E: Bad [adhesive on the entire surface]) Table 3

Claims (2)

[Claims] (1) At least one photosensitive layer consisting of a silver halide photographic emulsion sensitized with an infrared sensitizing dye is disposed on a transparent support.
In a silver halide photographic light-sensitive material having a layer, 30 vol. % or more of matting agent and 740 nm to 840 nm
1. A silver halide photographic light-sensitive material, comprising a backing layer containing a dye in an amount giving an optical density of at least 0.6 in the nm region. (2) The silver halide photographic material according to claim 1, which contains a substantially amorphous matting agent on the same side of the support as the photosensitive layer.